All names: Gaia DR2 1879544900675463552, Gaia DR3 1879544900675463552, LAMOSTJ221002.71+250358.2, LAMOST J221002.71+250358.2, TIC 27782233, WISEA J221002.72+250358.0, UCAC4 576-127603, 2MASS J22100271+2503583, WISE J221002.72+250358.1
Parameter | Unit | Geier 2020 | Stilism | Simbad |
---|---|---|---|---|
Right ascension | 22 10 02.71 | 22 10 02.71 (0.02) | ||
Declination | 25 03 58.29 | 25 03 58.30 (0.03) | ||
Spectral type | sdB | sdB | ||
Effective temperature | [K] | 20994.0 (10) | ||
log(g) | [cgs] | 5.27 (0.01) | ||
Mass | [M☉] | |||
log(Luminosity) | [L☉] | |||
Cooling age | [Gyr] | |||
log(H/He) | ||||
log(C/He) | ||||
log(Ca/He) | ||||
log(Ca/H) | ||||
Parallax | [mas] | 2.38 (0.07) | 2.33 (0.03) | |
Distance | [pc] | 420.27 (13) | 428.41 (6) | |
Composition | ||||
Proper motion (right ascension) | [mas/yr] | 12.617 (0.1) | 12.436 (0.03) | |
Proper motion (declination) | [mas/yr] | -20.684 (0.1) | -21.041 (0.03) | |
Variability | ||||
Magnetic | ||||
Bd | [MG] | |||
Infrared excess (disk) | ||||
Binarity | ||||
B magnitude | 12.69 (0.06) | |||
V magnitude | 12.83 (0.04) | |||
R magnitude | 13.00 (0.05) | |||
I magnitude | ||||
J magnitude | 13.19 (0.03) | 13.19 (0.03) | ||
H magnitude | 13.27 (0.03) | 13.27 (0.03) | ||
K magnitude | 13.29 (0.04) | 13.29 (0.04) | ||
u magnitude | ||||
g magnitude | 12.62 (0.06) | |||
r magnitude | 13.02 (0.04) | |||
i magnitude | 13.56 (0.5) | |||
z magnitude | ||||
G magnitude | 12.83 (0.0006) | 12.81 (0.003) | ||
BP magnitude | 12.71 (0.005) | |||
RP magnitude | 12.96 (0.002) | |||
Pan g magnitude | 12.77 | |||
Pan r magnitude | 13.09 | |||
Pan i magnitude | 13.35 | |||
Pan z magnitude | 13.54 (0.004) | |||
Pan y magnitude | 13.67 (0.006) | |||
E(B-V) | 0.050 |
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.